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Worcester Bosch Greenstar 4000 System Gas Boiler (White) 21kW – 7733600383

Worcester Bosch Greenstar 4000 System Gas Boiler (White) 21kW – 7733600383

SKU: 7733600385 Part Number: 7733600383
Regular price £1,149.36 Ex. VAT
Sale price £1,149.36Ex. VAT
Regular price £1,199.36
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Product Description

7733600383 | Worcester Bosch Greenstar 4000 21kW System Gas Boiler (White)

The Worcester Bosch Greenstar 4000 21kW is a compact and quiet system boiler ideal for medium-sized homes. With a 21kW central heating output, it efficiently supplies heat for properties with up to 15 radiators and a separate hot water cylinder. This model features a sleek modern design, an intuitive full-colour display, and is compatible with Bosch EasyControl for smart home integration. Up to a 10-year guarantee is available when installed with a Greenstar System Filter by a Worcester Accredited Installer.

  • 21kW output supports heating needs for medium-sized properties
  • Full-colour LCD text display for user-friendly control
  • Exceptionally quiet operation for enhanced comfort
  • Compatible with Bosch EasyControl smart thermostat
  • ErP A-rated for high energy efficiency and low emissions

Technical Specification

depth 310 mm
guarantee 10 Years
height 724 mm
length 310 mm
model Greenstar 4000 21kW
pack size 1
range Greenstar 4000
supplier part number 7733600383
type System Boiler
volume 89936 ml
width 400 mm
boiler system Sealed System – Requires separate hot water cylinder
color pattern White
energy efficiency class ErP Class A (Heating)
material Steel, Aluminum, and Brass
mounting type Wall-Mounted
power source Natural gas